Mining machine



May 19, 1925. ,533985 F. CARTUDGE l MINING MACHINE] Originali Filed June5, 1916 3 Sheets--Shee' l Iii/1 inten May 19, 1925. 1,538,685

F. CARTLIDGE MINING MACHINE Origina Filed June 5, 1916 :5 Sheetsheet g Iles@ ay E9, 1925. 1,538,685

F. CARTLIDGE MNING MACHINE Original Filed June b, 1916 15 Sheets-3heetIl sisted. The sun gear 38 is fast on the shaft The sun gear 37 formspart of a sleeve 39 rotatably mounted on the shaft 33 and locatedbetween such shaft and the sleeve 32. A sliding sleeve 40 has slidabletoothed engagement with the sleeve 39 and 1s slidable in eitherdirection along such sleeve a finger 41 which may be operated by a shiftlever 42. The sleeve 40 is provided with clutch teeth at. both ends sothat when slid in one direction from the'neutral position in which it isfree from any locking engage ment, the teeth 43 on one end engage teeth44 on the sleeve 32 to lock together the sleeves 32 and 39 and thuscause the sun and planet mechanism to rotate as a unit; and when slid inthe other direction from neutral position teethft on the other end ofthe sleeve 4() engage teeth 46 on a brake Wheel 47 loosely mounted ontheshaft'i and cooperating with a brake band 48 which may he set orreleased by an operating handle -49 to hold stationary or permit anydesired slipping of the brake wheel 47. The shaft 33 constitutes adriving member both for a feed operating member or drum 50 and acooperating controlling member, takeup member, or paying out drum 51shown respectively at the left and right hand sides of Figs. l and 3.For driving the member 50 the shaft is provided atr its lett. hand end,looking forward, with a driving' pinion 52 which. meshes with aninternal gear 53 on such member in one position of the latter. The feedoperating member or Winding drum 5() is mounted on an er fentriebushingr Fiel which is in turn mounted on a stub shaft 55 around whichit is adjusteble by an operating handle 56 to shit't the gear 53 intoand ont ot mesh with the pinion 52. From Figs. il and 7 it will benotedr that the operating handle may assume different predeterminedpositions for the oonnecied and disconneci ed position of the drum 50.

For driving the paying out. drum or takeup member 51`r the shaft 3S haskeyed on'its right hand end. looking forward, n sleeve 57 which at, itsinner end is provided with gear teeth to provide a sun gear 58 and atits outer end forms n bearing surface for a rotatably mounted sleeve 59which carries a plurality of planetary gears 60 which mesh with the` sungear 58 and with an internal gear fil on the inside of such paying' ontdrum or take-up member 5l. The pins G2 on whivh the planet gears aremounted are carried at their right hond en ds in the sleeve 59 and ontheir left hand ends carry a brake wheel 63 with which there cooper atesa brake band 64 which may be set or released by an operating handle doto hold stationary or to permit any desired dipping of the brake wheel63. The sleeve 59 has an outer annular portion 66 between, which massesand tthe main portion of the sleeve is anV annular space into whichproieots an annular sleeve member (3? carried by and c onstituting thebearing portion of the paying out drum 51, the member 67 being journaledon the sleeve 59 so that it supports the paying out drum. The outersurface of the annular member I-i and the inner surface of the annularportion G6 are toothed to eng ge with alternateiones of e series ofeluteh discs 68 which 'are loi-ated between the parts 66 and 6T. Theouter end of the sleeve 59 is threaded and has mounted thereon a Clutchsetting nut 69 provided With an op erating ring 70 by which it may berotated tolengage with greater or less pressure the web by which thepaying out drum 51 is mounted on the annular member 6? so as to causemore or less firm interengogeinent of the clutch discs 68. It should benoted that the teeth of the internal gear 6l are of such length andtheports ot sueh construction that a certain degree of movement of the drum5l longitudinally of the shaft 32? is permitted.

At this point it should be noted that the drum 51 is smaller than thedrum 50, but by reason of the reduction oerasioned by the driving of thedrinn .50 throngh the pinion 52 and internal gear 53 the drum 5l, whenthe operating ring 7G is moved to elieot the looking of the parts asiater explained so that the drum 51 rotates at the same angular rate theshaft 33. will have a greater peripheral speed than the peripheral speedot the drum 50. On the other hand, when tho drum 5l is driven at thereduced rate which is neemnplished by drivinf.,r the internal rear 6lthrough the planet gears 6) andsnn gear 5S the peripheral speed of thedrum 5l will be less than that of the drum 5G and` moreover, the drum 51will rotate in the opposite direction to drum 50.

The feed operating member or winding drinn 50 and the take-np member orpaying out drum :'31 are herein shown as adapted to t-ooperate with :ichain comprising portions 74 und 75 and en intermediate bight 76 having!suficient slack to permit the necessary independence of action of thedrums 50 and 5l. The chain may be carried through a suitable guide block77 and over pulleys or' sheaves 78. 79, 80 and 81 or some of them at thefar rorners of the frame 15, and over a pulley 82 between the pullevs orsheaves 78 and 79. These various pulleys or sheaves, or such of them asdesired. may have swinging or swivel mounting. By means of these variousnlleys or sheaves the chain may be 12: carried rom the drums or members50 and 51 in different directions fbr getting different directions ofmovement.

in order to keep the parte properly lubricated, and free from the dustwhich always la Dit ion

' bodied in other forms upon this bie-ht is seen in Figs. 8, 9 and 10.ln the first of these views there is shown diagrammateally a machinewith its bar perpendicular to the face and the bight 7G between the feedoperating and take-up members is clearly shown. Tn Fig, 9 the machine isshown with the cutter bar ln advance of the rear end of the machine byquite a substantial amountt a somewhat extreme case beirutr shown fordemonstration purposes. Here it will be noted that more cham has beentaken in by the feed operating member 50 than has been paid out by thetake-up member l so .that the amount of chain inthe hight has beenincreased, thereby increaeingr the length ot' the portion of the chainbetween the points at which the chain iea'ves the machine frame at itsopposite ends. (lt course it will be nnderstood that a corresporulingposition of the niachine relative to the working face may he secured invarious other ways, for example, by releasingr the drum b v means of thehandle 56, reversing! the motor. poliing the rear end ol' the machinearound by the drum 5l and the portion To of the chain, after which themotor might again be run in its original direction, the operatorthrowingr the bandle 56 to cause the drum 50 to become active :1nd sothat the machine Will` more ahead as previously described. It. may benoted, moreover, that by reason of the, tact that the member 5l tends topay ont the portion n tore slowly than the portion 74 is wound in by themcmben, a iosition corresponding Yto that shown in lig, I?, would hereached automatically unlees the friction band 64 were allowed tov slip.Fig. 'lil shows a position of the machine in which the rear end of themachim` has been allowed to get ahead of the cutter bar, this beingaccompiished, for example, by slackening up on the brake band 64 so thatthe portion 75 of the chain is paid out more rapidly than the portion 74is wound in. ln this operation of the parte it will be noted that theslack biglit been snbstanf ially diminished and that there `ie less chambetween the points at which the feed operatingl member leaves themachine at its opposite ends than in either of the other two positions.

While I have in this application specifically' described one form whichmy inven tion may assume in practice, it will be understood that thisform of the same is shown for purposes of illustration and that theinvention may be modified and em- O without departing from its spirit orthe scope of the appended claims. 4

What I claim as new and cure by Letters Patent is:

1. In e mining machine, a, frame, Jectmg outta: carried thereby,

desire tb seproa wi'izding drum, a paying-out drum, and a tension memberextending in a slack bight between the two drums and extending from thevrindn drinn forward from the frame near the en toward the cutter andfrom the payingput drum backward from the frame at a point farther fromthe cutter end, and means for operating said two drums so thatthe'paying-out, operation is slower than the winding operation 2. In amining machine, a frame, a pro jecting cutter carried thereby, a.winding drum, a paying-out drum, and a tension member extending in aslack bight between the two drums and extending from the winding drumforward from the frame near the end toward the cutter and from thepaying-out drum backward from the frame at a point farther from thecutter end.

3. In a mining machine, a frame, a projecting cutter carried thereby. awindingr drum, a paying-out drum. a. tension member extending: in aslack bight between the two drums and extending from the Winding: drumforward from the frame near the end toward the cutter and from thepaving-out drum backward from the frame at a point farther from thecutter end, and means for operating said two drums at diF- ferentspeeds.

4. l'n a mining machine, a frame. a proiectingr cutter carried thereby,a winding dr 1ro. a. paying-out drum` a tension member extending in a`Slack bight between the two drains and extending from the winding drumforward trom the frame near the end toward the cutter and from thepaying-out drum backward from the frame at a point farther from thecutter end, and means for varying; the relation in the speeds of saidtwo drums to vary the slackness of said blght.

5. In a miningr machine, a frame bodily elidable laterally relative tothe mine bottom, a projecting: cutter carriedzthereby, a tension memberextending forward from said frame at a point near the end toward thecutter and backward from the frame at a point farther Jfrom the cutterend and hav ing a portion between said two pointe, a feed operatingmember engaging said last named portion, and winding means cooperatingdirectly with said tension member for controlling the length of saidportion. 6. In a, mining machine, a. frame slidable laterally on themine bottom, a projecting cutter carried thereby, mechanism forfeeding;r said frame laterally including a tension member extending' inopposite directions from points adiacenti the opposite ends of saidframe and a, feed operating member engaging a portion of said tensionmember between said points, and winding means cooperating directly withsaid tension .mem, Vlier for controlling the length .of said' last.

points, sai D ing said las't named portion, and win a portion extendinglmentioned portion during the cuttirgr operi tion. i

7. In a mining machine, a frame bodily slidable laterally relative tothe mine bottom, a projecting cutter rigidly carried there a tensionmember havin a portion exten ing forward from said frame at a point nearthe end toward the cutter and backward from the frame at a point fart erfrom the cutter and also Having a portion between' said two points, afeed operating member engaging said last named portion, and windingmeans cooperating directly with said tension member for controlling thelength of said last mentioned portion andl the length of one of saidoppositely extending rtions.

8. In a mining machine, a fioame slidable laterally relative to the minebottom, a projecting' cutter carried thereby, a tension member having aportion extendin from said frame at a from the cutter and also having aportion between said two points, and means kincluding a feed operatingmember and a take` up member each en aging said last named rtion forcontrol ing the length of the Egt mentioned portion and the lengths ofsaid oppositely extending portions.

In a mining machine, a frame slidable bodily laterally relative to themine bottom, a projecting cutter carried thereby, a feed operatingmember carried thereby, a tension member cooperating with said operatingmember and exten ing forwardfrom said frame at a. point hear the endtoward the cutter and backward from the frame at a point farther fromthe cutter end and also havin` a rtion between said two flfeedpiperatingmember enag ing means cooperating directly with said ten sion member forcontrolling the length of said portion.

10. In a minin machine, a frame slidable laterally on t ie mine bottom,a projecting cutter rigidly connected thereto and carried thereby, afeed operating member carried thereby, a tension member coopera-tingwith said operating member and extending forward from said frame at a mtadjacent. the cutter end thereof and ackward from the frame at a pointfarther'l from the cutter end thereof and also having a portion betweensaid two points, a feed operating member engaging said last 'namedportion, and winding means cooperating d irectly with said tensionmember for controlling the length of said portion during the cuttingoperation.

11. In a mining machine, a nnltary selfpropelled mnin machine slidableon the mine bottom, :in including a frame, a .pro-

.jecting cutter bar thereon,

a feed o rat' l and a tension mexiieber bib-g operating with saidoperatin member and extending forward from sai frame et a point adjacentone end thereof and backward from said frame at a point adjacent theother end thereof and also having a por tion between said two points,said feed operating member engaging said last nmed portion, and windingmeans cooperating directly with said tension member for controlling thelength of said portion dm'-i mg the cutting operation.

12. In a mining machine, a frame bodily slidable laterally relative to amine bottom a projecting cutter carried thereby, a f operating membercarried thereby, a tension member hoogst-ating with said o eratingmember and aving a portion extenth'iig for ward from said frame at apoint nearthe end toward the cutter and a portion extendI backward fromthe frame at a point farther from the cutter end and also havin `aportion between said two points, sai feed operating member engaging saidlast named portion, and winding means between said o erating member andsaid backwardl exten ing portion cooperating directly wit said tensionmember for controlling the length of said last nfentioned portion.

i3. In a mining machine, a frame slidable bodily relative to the minebottom, a projecting cutter carried thereby, a feed operating membercarried thereby, a tension member coo erating with .said operatingmember an extending forward and rearward from said frame at pointsadjacent the opposite ends thereof and having a portion between saidpoints, said feed operating member engaging said last named portion, anda movable cooperating winding member cooperating directly with saidtension member and adjustabie to control the length of said portion.

14. In a mining machine, a frame slidable on the mine bottom, aprojecting cutter carried thereby, and mechanism for feedin said framelaterally comprising a feed operating member carried thereby, a tensionmember cooperating with said operatin member and extending forward fromsai rame 'at a point near one end thereof and backward from thev frameat a point near the other end thereof and also having a portion betweensaid two points, and a cooperating member movable about a horizontalaxis and enga ing sai'i portion at a oint tween one o said points andthe fee operatin member.

15. n a mining machine, a frame slidable cin-the mine bottom, aprojecting cutter carrie-:i thereby, and.mechanisin for feeding saidframe laterally comprising :i feedoperating member carried thereby, atension member cooperating with said operating member thereon,

'iti

member, and extending forward from said frame at a point near the endtoward the cutter and backward from the frame at a point adjacent the oposite end thereof and also having a por ion between said two points,and a cooperatingmember movable about a horizontal axis and engagingsaid portion at a point between said feed operating member and saidsecond mentioned point.

16. In a mining machine, a frame slidable on the mine bottom, aprojecting cutter rig; idly connected thereto and carried thereby, afeed-operating member carried thereby and rotatable on a transverseaxis, a tension member cooperating with said operating member andextcndlng forward from said frame at a point near the end toward thecutter4 and backward from the 'frame at a point adjacent the oppositeend thereof and also having a portion between Said two points, and amember cooperatingr directly with said tension member and rotatableabout a transverseiy extending which lies in a line passing within thecircunifer ence of said feed operating member and controlling the lengthof said last mentioned portion.

l?. In a mining machine, a frame, a rojecting cutter carried thereby, awin ing drum, a paying out drum, a tension member extending between`raid two drums and extending from the winding drinn forward from theframe near the end toward the cutter and from the paying-out drumbackward from the frame at a point farther from the cutter, and meansfor driving said two drums so that the paying out operation is slowerthan the winding operation.

18. In a mining machine, a frame, a rojccting cutter carried thereby. awin ing drum, a payingont drum. a tension meinber extending; betweensaid. two drums and extending from the winding drum forward from theframe near the end toward the cutter and from the paying-ont lrum back--ward from the frame at a point farther from the cntterr and' meanscooperating directly with eaiddrinns so that the payingont ope 1ation iseiower than the windingl operation.

19. In a mining n1achine.a frame, arprojectingV cutter bar carriedthereby. a Ywinding drnmv a paying-ont drinn. n flexible memberproviding flexible feeding portions extendingY from the winding drinniorward from the frame near the end toward the cutter and from thepayingbnt drum backward from the frame at :i point 'farther from thecutter end. and means for rotating Said drums by power so that thepaying-ont operation is ,slower than the Winding operation.

20. In a miningr machine` a machine trame', a projecting cutter carriedthereby. a winding dram, a paying-out drinn, anda tension member extendnfrom the winding drum forwardly from tIie frame near the end toward thecutter and from the paying-out drum backward from the frame at s, pointfarther from the cutter end and comprising a portion between said drums,the coaction between said drums and said lfirst and second mentionedportions preventing a transmission to the third mentioned portion of thetension under which either of the first men tioned portions is placed.

21. In a mining machine, a traine, a projecting cutter carried thereby,a winding drum, a paying-out drum, a tension member having a portionextending between the two drums and also vhaving,r ortions extendingfrom the winding drum orwardly from the frame near the end toward thecutter and from the paying-out drum backward from the frame at a pointfarther from the cutter end, and means for operating said two drums atdifferent speeds.

22. In a mining machine, a frame, a rojerting cutter carried thereby, awinding drinn, a paying-out drum, a tension meniber including a portionlying,r between the two drums and tively from the winding drum forwardfrom the frame near the Vend toward the cutter and from the paying-outdrum backward from the frame at a point farther from the cutter, andmeans for varyingr the relation between the s eeds of the two drums tovary the length of t e portion between said drumsY 223. In a miningmachine. a frame bodily slidable laterally relative to the mine bottom.

a projecting cutter carried thereby, a'feed operating: member on .saidframe rotatable by power and operative to cooperate with a fiexiblefeeding portion to move the machine toward the remote end of saidfeeding portion, a iexible feeding portion cooperating therewith andextendingp to a point in ailvance of the machine. a rotatable element onsaid freine adaptedto cooperate with a flexible feeding portion toretard the morement of .said frame away from the remote end of suchportion, n iexible feeding por tion cooperating with said element andextending to a` point in the rear of said frame as regards itsvdirection of movement, e lexible portion connecting said first andortions extending respec-V second mentioned iiexible feeding; portions.

and constituting therewith a continuons dei ible feeding member. andmeans cooperat ing! with said rotatable element to brake the rotationthereof.

24'. In a miningr machine, a frame bodily slidablc laterally reiative tothe mine bottom, a projecting cutter carried thereby, a feed operatingmember on said frame rotatable by power and operative to cooperate n itha flexible feeding portion to move. the machine toward the remote end ofsaid feeding portion, e iiexible feeding portion oooperating therewithand extending to a point in a vance of the machine, a rotatable elementon said frame adapted to cooperate with a flexible feeding portion toretard the movement of said frame away from the re-l mote end of auchportion, a flexible feeding portion cooperating with said element andextending to a point in the rear of said frame as regards its directionof movement, a flexible portion connectin said first and secondmentioned flexible ceding portions and constituting therewith acontinuous lexible feeding member, and means cooperatin directly withsaid rotatable element to e fect rotation thereof by power.

25. In a mining machine, a frame bodily slidable laterally relative tothe mine bottom, a projecting cutter carried thereby, a fecd operatingmember on said frame rotatable by power and operative to cooperate witha ilexible Yfeeding portion to move the machine toward the remote end ofsaid feeding portion., a llexible feedin portion cooperating therewithand exten ing to a point in advance of the machine, a rotatable elementon said frame adapted to cooperate with a flexible feeding portion toretard the movement of said frame awa from the remote end of auchportion, a flexible feeding portion cooperating with said element anextending to a point in the rear of said frame as regards its directionof movement, a flexible portion connecting said first and secondmentioned lexible feeding portions and constituting therewith acontinuous lexible feeding member, and means coo erating with saidrotatable element to seectively' brake the rotation thereof or eect therotation thereof by power.

26. ln a mining machine, a frame bodily slidable latcrally'relative tothe mine bot tom, a projecting cutter carried thereby, a tension memberextending forwardfrom said frame at a point near the end toward thecutter and backward at a point farther from the cutter and having aportion between said two points, and means controlling the length ofsaid portion including but two operatorcontrolled llcxilile portionengaging elements and theyr rotating on axes fixed relative to saidframe.

2T. ln a mining machine, a frame bodily slidable laterally relative tothe mine bottom, a projecting cutter carried'thereby, a tesion memberextending forward from said frame at a point naar the end toward thecutter and backward at a point farther from the cutter and having aportion between said two points, and means controlling the length ofsaid portion including but two operatoocontrolled flexible portionengaging elements and they rotating onaxes fixed relative to said frameand means for rotating one of the same by power.

In a mining rnnczhinc, a frame bodily fsaid franz:K at o slidablelaterally relative to the mine bottom, a projecting cutter carriedthereby, a tension member extending nforward from point near the endtoward the culti-r and backward at a point farther from thiwotter andhaving a portion between said two cinte, and means control ling thelength o said portion including but two flexible portion en agingwinding elements rotating on axes ed relative to said frame and meansfor rotating both of the same by power.

29. In a mining machine, a frame bodily slidable laterally relative tothe mine boo tom, a projecting cutter carried thereby, a tension .memberextending forward from said frame at a point near the end toward thecutter and backward at a point farther from the cutter and having aportion between said two points, means controlling the length of saidportion including but two flexible portion engaging winding elements andthey rotating on axes fixed relative lo Said frame, and means forrotating the same by power in the same or opposite directions.

30. In a mining machine, a frame bodily slidable laterally relative tothe mino hetl tom, a projecting cutter carried thereby, a tension memberextending forward from said frame at a point near the end toward thecutter and backward at a point farther from the cutter and having aportion heY tween said two cinte, and means controlling the length osaid portion including but two flexible portion engaging windin elcmenteeach rotating on an axis fixed re ative to said frame, and means forrotating the same by power in opposite directions at unequal s 31. In amining machine, a frame bodily slidable laterally relative to the minebottom, a projecting cutter carried thereby, a tension member extendingforward from` said frame at a point near the end toward the cutter andbackward at a point farther from the cutter and having a portion betweensaid two points, and means controlling the length o -said portionincluding but two flexible portion engaging winding elements and theyrotatin on axes fixed relative to said frame, anfmcans for rotatin thesame in the same direction at equa speeds.

32. In a mining machine, a frame bodily slidable laterallylmelative tothe mine bottom, a projecting cutter carried thereby, a tension memberextending `forward from said frame at a point near the end toward thecutter and backward at a point farther romt he.cutter and' having aportion hetween-said two points, means controlling the length of saidportion including but two flexible portion engaging winding elements andthey each rotating on an axis fixed relative to Said frame,

and means for rotating i ill) llt

the same at unequal predetermined'speeds in the same direction, saidmeans including means for eti'ecting rotation of the element rotating etthe faster-prcdetermined speed at substantially the. same speed :is theslower predetermined speed.

33. The combination, in a mining machine, with cutting mechanism, offeeding mechanism therefor comprising a driving motor, a shaft, aplural-speed connection be tween said motor and said shai'twhereby thelatter may be driven at a plurality of predetermined speeds by theformer, two feed operating members operatively connectible with saidshaft, means for connecting one of said feed operating members to saidshaft for driving thereby at a plurality of predetermined speeds whilerotation of said shaftremnins constant, and a continuons flexiblefeeding ineniber cooperating with both of said'feed operating members atpoints between its ends.

34. In a minin machine, the combination with cutting mec ienism, offeeding mecha` nism therefor comprising a driving motor, a shaft, aplural-speed ,connection between said motor and said shaft whereby thelatter may be driven at n lurality ofpredetermined speeds by the ormer,two feed operating members operatively conne'ctble with said shaft,means for connecting one of said feed operating members to said shaftfor driving thereby at a predetermined speed in one direction and at adifferent predetermined speed in the opposite. direction vi'hilerotation of said shaft remains clonstant, and a continuous flexiblefeeding member cooperating with both of seid feed operating members atpoints between its ends.

35. The combination in a .mining machine of cutting mechanism and4feeding mechanism therefor comprising a driving motor for bothmechanisms, a shaft, a plural-speed connection between said motor andsaid shaft whereby the latter may be driven ai a plurality ofpredetermined .speeds by the former, two feed operatin membersoperatively connectible with sait shaft, means for connecting one ofseid feed operating members to said shaft for driving thereby at apredetermined spoed in one direction land at a dili'erent predeterminedspeed in the opposite direction while rotation of said shaft remainsconstant. the angular rate of one of said predetermined speeds beingequal to the angular rate of rotation of said shaft, and a continuousexible feeding member cooperating with both of said feed operatingmembers at points between its ends.

36. The combination, in a mining machine, of cutting mechanism andfeeding mechanism therefor comprising a driving motor for both of saidmechanisms, a shaft, a plural-speed. connection between said motor andsaid shaft whereby the latter may be driven by the former, two'feeoperating members loperatively connectible with said shaft, meansA forconnecting one of Vsaid feed operating members to said shaft for drivingthereby at a predetermined speed in one direction and at a differentpredetermined speed in the opposite direction while rotation of saidshaft remains constant, said means for connecting said feed operating,rmember to said shaft including friction mechanism controllable to varythe rotation et' said drum from said predetermined speeds. and acontinuous flexible feeding member cooperating with both of seid feedopratingf members at points between its en s.

3T. The combination with a mining ma chine, of feeding mechanismtherefor coniprising a driving motor, a shaft, a plural predeterminedspeed driving connection between said motor and said shaft whereby thelatter ma be driven at a plurality of predctermine speeds by the former,two feed operating members operatively connectible with said shaft,means for selectively connecting said feed operating members in drivenrelation to said shaft operative to wholly disconnect the same from thelatter, and a continuous flexible feeding member operatively engagingcach of saidfeed operating members at points between its ends.

38. ln a .mining machine, feeding mechanism comprising al driving motor,a shaft, a plural predetermined speed connection hetween said motorandysaid shaft whereby the latter may be driven at a plurality ofpredetermined epeeds by the former, said connecton including frictionmechanism adjustable to variably diminish the speed of said shaft fromone of said predetermined speeds, two feed operating members operativelyconnectible with said shaft, and means for selectively connecting saidfeed operating members in driven rciation to said shaft operative toWholly disconnect the same from the latter, and a continuous flexiblefeeding member operatively engaging each of said feed operating mem ersat points between its ends.

39. In a mining machine, a frame having a forwardly projecting cutterbar, a motor on said frame, a feed operating member rotatable on a.transverse axis at one side of said frame. a flexible feeding membercooperating therewith and adapted 'to be am chored at its opposite endsat opposite sides of said machine frame during cutting across a face,operative connections between said 1 feed operating member and Saidmotor including intermeshing elements respectively coaxial with saidfeed operating member and fixed as to relative rotary movement withrespect thereto and constituting a Htl of rotation of one of saidelements.

10. ln a mining machine, a frame having a forwardly projecting cutterbar, a motor on said frame, a feed operating member rotatable on a.transverse axis at one side of said frame, a flexible feeding membercooperating therewith and adapted to be anchored at its opposite ends atopposite sides of said machine frame during cutting across a face,operative connections between said feed operating member and said motorincluding intermeshing elements respectively coaxial with said feedoperating member and fixed as to relative rotary movement with respectthereto and constituting a driving member for said last mentionedelement, and means for interrupting said drive including means forbodily arcuately moving the axis of rotation of one of said elements.

41. In a mining machine, a frame having a forwardly projecting cutterbar a motor on said frame, a feed operating m ber rotatable on atransverse axis at one side of said frame, a flexible feeding membercooperating therewith and adapted to be anchored at its opposite ends atopposite sides of said machine frame during cutting across a face,operative connections between said feed operating member and said motorincluding intermeshing elements respectively coaxial with said feedoperating member and fixed as to relative rotary movement with respectthereto and constituting a drivin member for said last mentionedelement, an means for interrupting said driving connections including arotatably mounted ec-4 centric supportingr said feed operatip member androtatable to bring sai first mentioned element into mesh with saidsecond mentioned element and to move it out of mesh'.

42. Iii a mining machine, a frame, cutting mechanism thereon and feedinmechanism thereon including a flexible feeding member normally extendinglaterally in opposite directions from opposite ends of said frame and alaterally extending feed o erating member, and guiding means for said)flexible member for directing said frame transversely during cuttingiiicludin a laterally extending guiding member disposed adjacent saidfeed operating member.

43.- In a mining machine, a frame, cutting mechanism fixed thereon,feeding mechanism for said frame including a flexible feeding membernormally extending laterally in opposite/directions from o osite ends ofsaid frame, a laterally extending feed operating member, and guidingmeans for said flexi ble lmember including a pair of guiding membersdisposed adjacent to said fe` d operating member and at opposite sid sof a plane inpluding the axis of rotation of the atter.

44. In a mining` machine, a frame slidable on its bottom on a. minebottom, cutting mechanism thereon includin connected lon'itudinallyextending cutter bar, and feeding mechanism thereon for feeding saidframe bodily laterally including a flexible feeding member, a feedoperating member rotating on a transverse axis and projectingr laterallyfrom one side of said frame, and guiding means for said flexible feedingmember adjacent said feed operating member and also at'the opposite endsof said frame.

45. Iii a mining machine, a frame slid able. on a mine bottom, cuttingmechanism thereon including a rigidly connected longitudinally extendingcutter bar, and feedi `mechanism thereon including a flexible feedingmember extending laterally in opfposite directions fi-om the oppositeends o said frame, a feed operating member extendin laterally from oneside of said frame, an guiding means for said flexible member disposedadjacent said feed operating member a rigidly i and also at the oppositeends of the same side l of said frame.

46. In a mining machine, a frame slidable on a mine bottom, cuttingmechanism thereon including a rigidly connected lon itudi nallyextending cutter bar, and ceding mechanism thereon including aflexiblefeeding member extending laterally in opposite ,directions from theopposite ends of said iframe. a feed operating member extendinglaterally from one side of said frame, and guiding means for Laidflexible member including a pair of guiding members disposed adjacentsaid feed operating member and guiding members at the opposite ends ofthe same side of said frame.

47. In :i mining mechanism, feeding mechanism including a lurality offeed driving elements, a singllii flexible feeding meniber engaginofsaid elements, and means for using one o? said elements as a feedoperating i'nembcr and the other Yas a takeup 48. In a mining machine,feedin mechanisiii including feed operating an take-up members rotatableon transverse axes, means cooperating directly therewith for effectingrotation thereof at different speeds, and a continuous flexible feedingmember engaging both of the same.

.49. In a mining machine, feedin mechanisiii including feed operating antake-up members rotatable on transverse axes, means cooperating directlytherewith for effecting rotationthereof simultaneously at differentspeeds, and a continuous flexible feeding member engaging both yof thesame.

50. In a room and pillar mining machine, cutting mechanism and flexiblefeeding lun means includin feed operating and take-up members rotata leon transverse axes and located at the opposite sides of the machine,means for driving said feed operating and take-np members independentlyof each other, and a continuous flexible feeding `member operativelyrconnected to said feed operating and take-up members during transversecutting.

51. In a room and pillar mining machine, cutting mechanism and flexiblefeeding means including feed operating and take-up members rotatable onltransverse axes and located, at the opposite sides of the machine,means for driving said feed operating and take-up members cooperatingdirectly therewith, and a continuous flexible feeding member operativelyconnected to said feed operating and take-up members during transversecutting.

52. The combination with a room and pillar mining machine, of feedingmechanism thereon including feed operating and tinte-np vmembersrotatable on transverse axes and located on the `opposite sides thereof,a continuous flexible feeding element operatively connected to both ofsaid members, and means for rotating said members simultaneously oreither of the same at will.

53. ln a mining machine, a machine frame. feeding mechanism thereonincluding feed operating and take-up members rotatable on transverseaxes and located on the opposite sides of said frame, an idler locatedon a arallel axis adjacent each of said members, and a flexible feedingmember engaging said members and said idlers.

54. In a mining machine, a machine frame, feeding mechanism thereonincluding feed operating and take-up members rotatable on transverseaxes and located on the opposite sides of said frame, a continuousflexible feeding member engaging both of said niembers, guidinfr idlerstherefor located on parallel axesadjacent one of said member, andcooperating guiding means for directing the opposite ends of saidflexible member laterally from opposite ends of said frame.

55. In a mining machine, a frame slid` able laterally on the minebottom. a projecting cutter carried thereby, mechanism for feeding saidframe laterally including a tension member extending in oppositedirections from points adjacent the opposite ends of said frame and afeed operating member engaging a portion of said tension member betweenSaid pointand winding moans rooperating directly with said tensionuumber for controlling th length of said last mentioned portion duringthe cutting operation.

56. In a mining n1 bine, a' frame having a forwardly projectir cutterbar and feeding mechanism inclucing a single continnous flexible feedingmember, a rotatable feed operating member adapted to cooperate directlywith said flexible feeding meniber at a point between the ends of thelatter and rotatable on a transverse axis at om` side of said frame,arooperating rotatable member rotating on a transverse axis at theopposite side of said frame and also cooperating direc-tlv with saidllexible feeding member at a point between the ends of the latter, amotor on said frame, means for driving said first mentioned rotatablemember from said motor, and means for driving said last mentionedrotatable member from said motor in opposite directions at differentspeeds.

57. A mining machine comprising a` frame slidable on the mine bottoniand a projecting cutter bar, and means for feedmg said frame and guidingthe same during cutting and at other times including a flexible feedingrmember providing a plurality of flexible `feeding portions disposableduringr cutting transversely of a face in opposite directions from theopposite ends of said frame, and feed operating and controlling meansincluding rotatable feed operating means cooperatingr with said flexiblefeeding member, and driving means for Said rotatable feed operating1means operable without reversal of said motor to cause winding in ofone of said portions at a pre determined cutting speed and 'to cause thedrawing in of the other flexible feeding portion at a higherpredetermined cutting speed or at a still higher predetermined machinemoving specd which exceeds the maximum potential cutting speed of saidmachine under normal working conditions.

58. In a mining machine, feeding mechanism including feed operating andtake-up members rotatable on transverse axes,mcaus for driving each ofthe saine by power to cllert rotation thereof. and a continuous llcxblefeeding member engaging both of lsaid members.

al). ln a mining machine, feeding morbanisui including feed operatingand take-up members rotatable on transverse stationary axes, andacontinuous flexible feeding mouibcr engaging b'oth of the same.

G0. In a mining machine, feeding mechanism including frictionallycontrolled feed operating and take-up members rotatable on transverseaxes, and a continuous flexible feeding member engaging both of thesame.

(3l. ln a mining machine. feeding mechanism including feed operating andtake-up members rotatable on stationary transverse axes at differentpredetermined speeds, and

a continuous flexible feeding member engaging both of the same.

62, The combination with a room and pillar mining machine, of feedingmeans including Vfeed operating vand take-up members rotatable thereonon transverse relalll) tively fixed axes, a continuous flexible feed-4ing member engaging said members, and

4sides thereof, a continuous flexible feeding member, and means foroperatively connecting the latter to said members to feed said machinelaterally.

64. The combination with a room and pillar mining machine, of flexiblefeeding means thereon includin-g feed operating and take-up membersrotatable on transverse axes and located on the opposite sides thereof,a continuous flexible feeding member operatively Connected to saidmembers, and means for actuating said members to feed said machinetoward either end of said flexible member.

65, The combination with a room 'and pillar mining machine, of feedingmechanism thereon including feed operating and take-up members mtatableon transverse axes and located on the opposite sides thereof, acontinuous flexible element operatively connected to both of said mem1ers, and means for rotating either member.

66. The combination with a room and pillar mining machine, of feedingmechanism thereon including feed operating and take-up members rotatableon transverse axes and located on bhe opposite sides thereof, a.continuous flexible feeding element operatively oonneded Ito both ofsaid members, and means for rotating either member at different speeds.

67. The combination with a room and pillar mining machine, of feedingmecha- "ism thereon including feed operating and take-up membersrotatable on transverse stationary axes and located ou the oppositesides thereof, a continuous flexible feeding element operativelyconnected to both of said members, and means for rotating snid memberssimultaneously.

68. The combination with a mining machine frame slidable on its bottomon a mine bottom, of a laterally extending feed operating memberthereon, a continuous lexible feeding member cooperating with snid feedoperating member and extending around the same on one side of said frameund iu opposite directions from the oppo- .site ends of said frame, alaterally ext'cnding guiding menus adjacent said feed opemting memberaround which the slack side of said flexible feeding member is extended,nml a cooperating laterally extending guiding member engaging the tightside of said flexible feeding member :it a point in front of said feedopemling member.

69. In a. mining machine, a frame, cutting mechanism thereon, feedingmechanism thereon including 'a flexible feeding niember normallyextending laterally in opposite directions from opposite ends of saidframe and a laterally extending feed operating member, and guiding meansfor said flexible member for directing said frame transversely duringcutting including a laterally extending guiding member rotatable on apivot disposed above the bottom of said operating member.

70. In a mining machine, a frame` cutting mechanism fixed thereon,feeding mechanism for said frame includin a flexible feeding membernormally extending laterally in opposite directions from opposite endsof said frame and u, laterally extending feed operating member, andguiding means for said flexible member for directing said frametransversely during cutting including a laterally extending guidingmember rotatable on a pivot disposed above the bottom of said operatingmember. ,71. In a mining machine, a frame slidzible on its bottom on amine bottom, cuttingr mechanism thereon includin a rigidly connectedlongitudinally extending cutter bar, and feeding mechanism thereon forfeeding said `frame 4bodily laterally including n flexible feedinmember, a. feed operating member exten ing laterally from one side ofSaid frame, and guiding means for said Llexible feeding member adjacentsaid feed operating member and also at the opposite ends of said frame.

72. The combination with a mining machine, of feeding mechanism thereforincluding ,a continuous llexible feeding member cooperating therewithand having single strands extending from the opposite sides of saidmachine, feed operating means operative to draw in ei-thcr strand at arutting speed, and adjustable means on said imuhinc for limiting orinterrupting the paying ont v,0f one of said strands while |.ierniittingdrawing in of the other.

Til. 1n a mining machine, :t frame slidablc on :rmine bottom, cut-tingmechanism thereon including a rigidly connected longitudinally extendingcutter bar, and feeding mechanism thereon including a flexible feedingmember extending laterally in op ite directions from the opposite ends osaid frame, a feed operating member extendin laterally' from one side ofsaid frame, anily guiding means for said flexible memberdjslmsed'ad'aoent said operating member and also at t e opposite ends ofthe same side of said frame.

74. In a mining machine, a frame, cutting mechanism thereon, feedingmechanism thereon including flexible feeding means and :i laterallydisposed feed operating member,

'cooperating guiding means for said flexible lln l feeding meansdisposed upon a plvot aboveV the bottom of said feed operatingmember,

flexible feeding n'ieansl displci'se 'at the' opposite'end's of onelsideof said frame."

75.V In a mining machine, a franie, cutting mechanism thereon, feedingmechanism thereon 4including flexible feeding Vmeans and a laterallyAdisposed feed operating member, cooperatingguiding .fueans for said'flexible feeding means rotata'ile upon .an axis disposed below the axisLf said feed operating-fmember, and cooperatmg guiding means 'for saidflexible feeding means dis posed at the opposite ends of one side ofsaid frame.

T6. Ina mining mncliine, :i frame, cutting mechanism thereon, feedingmechanism thereon'incliiding a single flexible feeding member and arotatable laterally extending feed'Y operating member, and guiding meansfor 'said flexible feedingA member including guidinir members disposedat opposite ends of said. fravme'and a laterally extending guidingmember rotatable upon an axis disposed above the bottom of said feedoperat4 ing member.

77. In mining machine, a frame slidable on the bottom, cuttingmeclianism thereon, feeding mechanism thereon including, a singleflexible feeding member and a rotatrd ,able laterally extending feedoperating member, and guiding means for said Hexible feeding memberincluding guiding members disposed at opposite ends of said frame and alaterally extending'guiding member rotatable upon 4an axis disposedbelow the :iris of-said feed operating. member.

78.V In a mining umachine, u frlune having -a forwardly projectingcutter bar und feed;

ing mechanism including a single con:- tiiiuous flexible feedingrine|nber,-a ritntuble feed opei'ulngiineiuber ndzipteddo cooperatedii'eetlj.v with suid llexilili feeding iiieiliber ul :i point betweenlhe endsl of the' hitter and rotatable on ii transverse axis at one sideof said fi'l'ime` :i i'oiiperiitiug rotatable member rotating on :itwins-verse :ixis at llie. opposite sideI of said l'i'ziuii :ind alsocooperating ferenb Asp,

nfrf member f thereon,

imasss at 'et` [loin-tbetyeen tlfe ends of the latter, a

motqr on sal irame,;,meens for. driving sind vtat l"blemember from ysai'd'moter `nl opp si' ectio'nsat dif'- -tablicjnember from said eeds:L

` ln aiA mining ma` its bottom 'on a chine fraiche v. i., mine" bottom;`of a operating member thereon, a continuous flexible feeding. membercooperatingv :with said feed operating member and extending aroundtlie'sarneon one-side of said frame and in opposite. directions from theopposite ends of said frame, and a' laterally extending guiding meansadjacentsaid feed operating inc niber around which 4the slack side ofsaid flexible feeding member is extended.

80. Thecol'nbination with nA mining machine frame fslidabl'e on itsbottom on a mine bottom, of a laterally extending feedoperata continuousflexible feeding membei'eooperating with Said feed operatingmemberandextending around the same on one iie `of 'said frame andin-opposttev directions' from -tbeI opposite ends of sailtlfframe,a'laterally extending guiding means adjacent said feed. oper-(tingmember around which the slack side of said flexible feeding member isentended, and a cooperating lateralljfV extendingguiding member engagingthe tight side of said flexible feeding member at a point in front ofsaid feed operating member. Y

8l. In nl min'ing machine,a frame, cutting mechanism thereon, feedingmechanism tliereon'includin a flexible feeding member normally exten'4ing laterally in opposite directionsfrom opposite ends of said framenud a laterally extending feed operating member, and guidin means --forsaid flexible member for directing Said frame transversely duringcutting including a lateral!)v Aextending guiding member disposed :id-

FRNK CARILIDGE.

ns. fer dating Said laterally 'eirtendin'g feed l) fi feeding ineensdisposed upon n pivot above the helium of Suid feed operating member,and ruopernting guiding menne for Said lle xiile feedingy nimm dispesad:it the opH punite ends nl une Side ui' snid` l'raune.

T5. 1n n minime innehine. n t'rnnie` cutting mechanism llierenn.feeding' ineehnnisni thereon inelnding llexihle eeding menne und nlaterally dizlinsed feed operating` lnendaer. weIpemliinev guiding'nenne for Snid llexihle feeding menne retutn'ile upon an :wie disposedhelen' the axis il said feed operating meniher. :1nd eooperntnigguidingr nieuw for enid lexildileveling menne disposed :it the imgmsileendn` el ene Side el' said fiume.

Tl. ln n 1ninin4 ninehine` :i freinej ruling;r mechnnism lherenn.feeding meehnniznn herenn inelndinel n ingle l'lexihle feeding ineinlierund n rnlutnlile l-,dernlly extending feed niiernting lueniher, andguiding menim 'lmsnid lexihle feeding' member inelnding guidingnielnhere disiweed :it opposite ends el Suid freine und n laterallyextending guiding' member retidnile upon un axis disposed nhove thelmlimn if mid Jfeed operating member.

T. In n miningl innehine. n freine slidnble on the hottinn, vullinglmeehnniem thereon, feeding nierhnnifni therenn including n lingleilexihle feeding inenlher :1nd n rotai- :die lnternlly extending feedOperating nwinlier, :ind guiding menne` l'er .Caid ilexilile feedingnielnher ixulnding guiding inen'diers disposed nt opponiie ende4 etlSuid l'rnine und n laterallyv extending' guiding ineulher l'etninhleupon un axis disposed lielen'ithe :wie oli'snid leed operating member.

ln n miningr nun-nine` n i'rznne having :1 l'mnnrdly prejeelineentierhun) und 'leedmeehnnisui ini-hiding; :1 Single eeninsulina` llexililwleediuf;A nii-inher. n l'nlnlzdlhleed nliernlinif.1|n'1i|lnl' :idnldrdil: Kumpel-nie dil'ei'tlji' .i'illl nid liexiille feeding' nnulliel' :il:i point llelwrl-n llnend nl ilie lutter und ronnhle on :i linnwelsi-:wie4 nt une i-ide nl' iid Tranne, 1 reopening riitntnhle ineniherlending* on n lrnum'eriee :mis nt the oppesile nidi nl' will lunne und:den enopernting direetly lwith said Hexible feeding nienilier at npoint between the endel of the lutter. n nniter on said freine`y meansfor drring;` Suid iirst inentinned rotatable member l'rnni Said meter inoppesite direetiens :d dil"- 'erent Speeds, und means for driving; seidlest mentioned rontnhle. member rnm smid motor :Lt different Speeds,

TU. The combination with e. mining nm` whine freine slidnhle en itshellem nn n mine bottoni, et n laterally exieinling.; tend nperntingmember therenn, n eei'itinnmxh` liexihle feeding member eneiienting withmid leed opernting member :ind extending; nrnnud the vinnie en one sideel' Suid i'rnnie und in opposite direelionn l'rinn the opposite ends nlsind frznne, and n intl-rally eidrndiin;A guiding ineens adjacent saidfeed nier-innig member around whir'h the Shu-iii' eide nlV mid llexihlefeeding nnnnlwr is extended.

SU. ll`he combination with n miningA mie ehine freine slidable on itehettmn en :i mine bottom, of u laterally extending feed filmini inf;member thereon, n continuons iexihle feedingr member cooperating withsaid i'eed operating member and mienilinig around thr- .sinne on oneeide of Suid tranne nud in npposite directions from the oppnsire endg,di; seid traine, n later-lillyY extending-i' guiding menne. adjacent.seid feed operating menden around which the sleek side et eind ilexihlefeeding member is extended` und n, mengen-:ii ina;r laterally extendinggnidiin:` menden' en raging the tight side of Huid llexilale ,fwdingmember nt e. peint in frnnl il .sind leed epernting member.

81V. In n mining mnehine` n freine, euliin; mechanism thereon, feedingmeelinninni thereon inelnding n lle'xilile feeding meniher nenn-[illyextending laterally in impoidte direefinne` from oppesile erich4 el'sind freine .1nd n laterally miendiin; leed unending |iiei|il e1',i1inlAguidingineens lin' Huid ilexililiA niendaer for direeline sind freinetiene rersely during` eniling inwlndingg; :i nieinllxextendingl guidingineinher denim-d :nlinwnl Suid nperniiinf; inf-miler.

Certificate of Correction.

1t is hereby certified that in Letters Patent No. 1,538,685, granted May19 upon the application of Frank (,artlidge,

in l Mining Machines, errors appear in tion ns follows: Page 7, line129, claim word exis rend ewes; page 11, line rend below the amis; andthat of Cincinnati, Ohio, for en improvement the printed specificationrequiring correcstrike out the word each and for the 88, claim 70, forthe werds the seid yLetters Patent should be above the bottom read withthese e012 rections therein that the same may conform to the record ofthe ease in the Peten? (mice.

Signed and sealed this 13th day uf October, A. D. 1925,

` KARL FENN G, Acting Commissomr of ;P'fi'e-1it.ff.

Certificate of Correction.

It is hereby certified that in Letters Patent No. 1,538,685, granted May19, 1925, upon the application of Frank Cartlidge, of Cincinnati, Ohio,for an improvement in Mining Machines, errors appear in the printedspecification requiring correction ns follows: Page 7, line 129, claim32, strike out the word each and for the word exis read axes; page '11,line 88, claim 70, for the words above the bottom read below the amis;and thatA the Said Letters Patent should be read with these correctionstherein that; the same mayl conform to the record of the ease in thePtent Olice.

Signed and sealed fhis 13th day of October, A, D. 1925.

[SEAL] KARL FENNING,

Acting Commissioner OfPQents.

